forked from couchbase/go-couchbase
/
feed.go
167 lines (139 loc) · 3.26 KB
/
feed.go
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package main
import (
"flag"
"fmt"
"github.com/couchbase/go-couchbase"
"github.com/couchbase/gomemcached"
"github.com/couchbase/gomemcached/client"
"log"
"math/rand"
"net/http"
_ "net/http/pprof"
"net/url"
"os"
"runtime/pprof"
"time"
)
var vbcount = 64
var cpuprofile = flag.String("cpuprofile", "", "write cpu profile to file")
var memprofile = flag.String("memprofile", "", "write memory profile to this file")
func mf(err error, msg string) {
if err != nil {
log.Fatalf("%v: %v", msg, err)
}
}
// Flush the bucket before trying this program
func main() {
//runtime.GOMAXPROCS(4)
go func() {
log.Println(http.ListenAndServe("localhost:6060", nil))
}()
bname := flag.String("bucket", "",
"bucket to connect to (defaults to username)")
flag.Usage = func() {
fmt.Fprintf(os.Stderr,
"%v [flags] http://user:pass@host:8091/\n\nFlags:\n",
os.Args[0])
flag.PrintDefaults()
os.Exit(64)
}
flag.Parse()
if flag.NArg() < 1 {
flag.Usage()
}
if *cpuprofile != "" {
f, err := os.Create(*cpuprofile)
if err != nil {
log.Fatal(err)
}
pprof.StartCPUProfile(f)
defer pprof.StopCPUProfile()
}
if *memprofile != "" {
f, err := os.Create(*memprofile)
if err != nil {
log.Fatal(err)
}
defer pprof.WriteHeapProfile(f)
defer f.Close()
}
u, err := url.Parse(flag.Arg(0))
mf(err, "parse")
if *bname == "" && u.User != nil {
*bname = u.User.Username()
}
c, err := couchbase.Connect(u.String())
mf(err, "connect - "+u.String())
p, err := c.GetPool("default")
mf(err, "pool")
bucket, err := p.GetBucket(*bname)
mf(err, "bucket")
// start upr feed
name := fmt.Sprintf("%v", time.Now().UnixNano())
feed, err := bucket.StartUprFeed(name, 0)
if err != nil {
log.Print(" Failed to start stream ", err)
return
}
// request stream for all vbuckets
for i := 0; i < vbcount; i++ {
err := feed.UprRequestStream(
uint16(i) /*vbno*/, uint16(0) /*opaque*/, 0 /*flag*/, 0, /*vbuuid*/
0 /*seqStart*/, 0xFFFFFFFFFFFFFFFF /*seqEnd*/, 0 /*snaps*/, 0)
if err != nil {
fmt.Printf("%s", err.Error())
}
}
// observe the mutations from the channel.
var event *memcached.UprEvent
var mutations = 0
//var callOnce bool
loop:
for {
select {
case e, ok := <-feed.C:
if !ok {
break loop
} else {
event = e
}
case <-time.After(time.Second):
break loop
}
if event.Opcode == gomemcached.UPR_MUTATION {
//log.Printf(" got mutation %s", e.Value)
mutations += 1
}
if event.Opcode == gomemcached.UPR_STREAMEND {
log.Printf(" Received Stream end for vbucket %d", event.VBucket)
}
if mutations%100000 == 0 && mutations != 0 {
log.Printf(" received %d mutations ", mutations)
}
//e.Release()
}
// close stream for all vbuckets
for i := 0; i < vbcount; i++ {
err := feed.UprCloseStream(
uint16(i) /*vbno*/, uint16(0))
if err != nil {
fmt.Printf("%s", err.Error())
}
}
feed.Close()
log.Printf("Mutation count %d", mutations)
}
func addKVset(b *couchbase.Bucket, count int) {
for i := 0; i < count; i++ {
key := fmt.Sprintf("key%v", i+1000000)
val_len := rand.Intn(10*1024) + rand.Intn(10*1024)
value := fmt.Sprintf("This is a test key %d", val_len)
err := b.Set(key, 0, value)
if err != nil {
panic(err)
}
if i%1000000 == 0 {
fmt.Printf("\n Added %d keys", i)
}
}
}